Method of making slide fastener stops



A 15, 293% m. mEssuNs 5? AL z fi IETHOD OF IAKING SLIDE PASTE-HER STOPSOriginal Filed May 11, 1936 2 Shoots-Sheet 1 l'mnergtor Max lu'ea sllngAdolph hneger CI orne Aug. 15, 3939. M. KIESSLING a" AL. zvl%g9sifiIETHOD OF MAKING SLIDE FASTENER STOPS Original Filed lay 11, 1936 2sheets-sh t 2 Snnentor mx Kicsqu'ng Adolph Kneger (Ittomeg Patented Aug.15, 1939 METHOD or MAKING suns FASTENER.

- s'rors Max Kiessling and Adolph Krieger, Waterbury,

Conn.

Application October 23, 1936, Serial No. 107,196, which is a division ofapplication Serial No. 78,999, dated May 11, 1936. Divided and 'thisapplication April 13, 1937, Serial No. 136,617

2 Claims. (01. 29-148) This invention relates to methods of makingseparable slide fastener tapes, and more particularly to a two-part stopfor use in detachably holding the ends of a pair of slide fastener tapestogether. g

in the use of slide fastener tapes of the :above nature having rows ofcooperating fastener elements along the opposing edges of the tapes, andin which said elements are adaptedto be interlocked by the movement of aslide member, it has been found in many instances that the last elementof the row at the end of a tape became loosened, and either shifted outof its proper position or was pulled off, resulting in prematureseparation of the ends of said tape.

One object of thisinvention is to provide a method of making a two-partstop of the above nature whereby the ends of the tapes will be fittedclosely and neatly together in an easy and positive manner.

'Another object is to provide a method of making a device of the abovenature which, when clamped at the ends of the slide fastener tapes, willprevent the last fastener element from being moved out of position orpulling off.

Still another object is to provide a method of making a detachable stopof the above nature consisting of a pair of cooperating male and femalemembers, each of which is made from a single piece of metal.

A further object of this invention is to provide a method of making themale or pin member of the detachable stop.

{A still further object is to provide a method of making a detachablestop of the above nature which will be simple in construction,inexpensive to manufacture, easy to manipulate, compact, ornamental inappearance, and very efiicient and durable in use.

With these and other objects in view, there has been illustrated on theaccompanying drawings one form in which the invention may beconveniently embodied in practice.

In the drawings:

Fig. '1 illustrates a pair of interlocked fastener element tapes havingthe improved detachable stop assembled at the lower ends thereof.

Fig.2 is a fragmentary view of the lower ends of said tapes as theyappear when separated.

Fig. 3 is an enlarged front view of the lower ends of the tapes showingthe detachable stop members in assembled position.

Fig. 4 is, a similar enlarged view of the same taken from the rear.

Fig, 5 is an enlarged edge view taken on the line 5-5 of Fig. 3 with thetapes removed, looking downwardly. Fig. 6 is an enlarged bottom edgeview of the parts shown in Fig. 3, looking upwardly in the direction ofthe arrows 6'6.

Fig. 7 is an enlarged side edge view of the male member of the stop.

Fig. 8 is an enlarged side edge view of the female member of the same.

Figs. 9 to 13 inclusive are views showing theappearance of the blankafter the successive steps in the method of making the male member ofthe stop.

This application is a division of a prior applicaare applied comprise apair of narrow elongated beaded fabric strips or stringers l0 and II,each having a row of forked jaw elements I2 clamped upon the beadededges thereof, and said rows of elements are adapted to beinterlocked-for connecting the tapes together by the camming action of atapered slide 13 mounted thereon, when it is pulled upwardly from thelower end thereof, as viewed in Fig. 1. The rows of connected elements.1! are adapted to be disengaged from each other to permit separation ofthe tapes by moving the slide l3 in the reverse direction, all of whichis in accordance with the well known practice in this art.

Each element I2 is provided with a pair of opposed jaws which arecrimped inwardly upon the edges of the tapes by suitable clamping toolsnot shown. The slide I3 is preferably provided with a hinged fingerpiece I! to facilitate the manipulation thereof, said slide preferablyhaving a pair of parallel spaced plates 15 and 16 adapted toembrace therows of elements I 2 therebetween. The side plates l5 and I6 areprovided .on both side edges with inwardly extending side flanges I! forconfining-the elements I! and forcing them together into cooperatingengagement.

The detachable male and female members 18 and"!!! of the stop formingthe present invention are shown in Fig. 1 in assembled position applied5 to the methods to be hereinafter described.

Female stop member The female member I3 includes a pair of opposed tapeembracing plates 23 and 2| having 10 alined openings 22 therein which,when the memberis attached to'the tape, serve to facilitate theattachment of the tape to the edge of the article to be closed. Abovethe plates 23 and 2| and disposed along the edge of the tape abuttingthe elem braces the tape edge and is securely crimped thereto. The clip23 extends upwardly from the plates 23 and 2| toa point closely adjacentthe last element I2 upon the end of the left-hand 2o tape I3 to whichthe member I3 is attached, as viewed in Fig. 1. Below the clip 23 andwith its axis in alinement with the line of jointure of the I two rowsof elements I2 on the tape edges, a

hollow cylindrical socket 24 is provided.

5 vision is also made of a pair of slider-guiding ears 25, one of whichextends upwardly from each of the plates 23 and 2| on opposite faces ofthe tape I0.

Male stop member- 30 The male member I3 also has opposing tapeembracingplates 23 and. 21, similar to the plates 23 and 2| of the female member,and said plates 23 and 21 are likewise provided with circular openings23 to facilitate securing the tape II to 35' the article to be closed.The plate-"23 has anupstanding pointed prong. formed. on its upper edge,which isadapted to be passed through the tape II and then bentover andpressed down upon the rear surface of the plate 21 to secure 40 said pates to the tape II.

pair of spaced upwardly directed side plates 33 and 3| extending fromits upper edge and adapted to embrace the center edge of the tape I Ifor reinforcing the same. The lower left-hand 4-6 corner 32 of thesideplate 3| is preferably disposedbeneath the plate 21, asclearly shown inFig. 4. Provision is also made of a pointed prong 33, formed on the rearedge of the side part 33, which is adapted to. pass through the tape II50 and be bent over and pressed down upon the outer surface of theopposite. side plate 3| to firmly connect the opposing tape embracingplates 33 and 3l. The tubular edge portion 34 connecting the side plates33 and 3! is curved and 55 inclined outwardly slightly from 'top tobottom and-is extended downwardly from the lower edge of these plates inthe form of a cylindrical vertical tongue 33 for cooperative engagementwith the socket 24. The tongue 33 is spaced from the 60 lower edges ofthe plates 23 and 21 by-a slot 33 with its axis in alinement with theline of jointure of the interlocking rows of elements I2 on the tapeedges above it.

The inclined tubular portion 34 extends above 65 the last element I2 onthe tape I I and is slotted,

as at 33, to straddle the same; when in as- "'--sembled position, therolled tongue '33 of the male member I3 fits within the socket 24 of thea female member I3, thereby detachably connect- 7 ing theopposing lowerends of the tapes I3 and II. A slot 31 ispr'ovidedin the meeting edgesof the socket 24 to provide clearance for the side plates 33 and ofthe-male member of the stop.

*The upper end-of theslot 33 is adapted to abut I 76 againsta shoulder33 at the bottomnof said slot Y ments I2, a tubular clip 23 is providedwhich em Pro- 'Iheplate26hasa' curely interlocked together.

31 to hold the male and femalemembers I3 and I3 in their relativepositions, as shownv in Figs. 1, 3 and 4, whereby the rows of elementsl2 on the opposing tape edges will be properly interlocked when theslide I3 is moved upwardly. 5

Method of making the male stop member The steps in the method of makingthe male member I3 are illustrated in Figs. 9 to 13, in-

clusive. Thus, Fig. 9 shows a blank 43 stamped 10 out of sheet metalbythe first or blanking operation. The opening 23, the prongs 23 and 33,the slot 36, and a portion 43 from which the tubular tongue 35 is rolledare all blanked out inthe first step by suitable shearing tools, notshown, 5 The next operation results in bendingv down the prongs 23 and33 at right-angles tothe blank 43, as shown in Fig. 10, as by suitableforming tools, not shown. Fig. 11 illustrates the appearance of theblank 43 after the next step wherein the side plates 30 and3| are bentat right-angles to each other, and the inclined tubular portion 34 andthe vertical --tongue 35 are partially formed by suitable tools,notshown.

Figs. 12 and 13 show the results of the next operation whereby the sideplates 26 and 21 are bent at right-angles to each other and theinelinedtubular portion 34 and the tongue 35 are more completely formed bysuitable tools, not shown. The tooth-like projections 53 A of the.tongue 43 are bent inwardly to form a; blunt "point 5| at the end ofthe tongue by suitable tools to facilitate its insertion into the socket24 of the female member I3.

The final appearance of the male stop member 35 I3 is illustratedin,Figs. 3 and 4, wherein the plates 23'and 21 and the side plates 30and 3| embrace the tape II, and are pressed to ether firmly against thesame by suitable tools, not shown, the prongs 23 and 33 being passed 40through said tape and bent over into engagement with the plate 21 andthe side plate 3| by suitable tools, not shown, respectively. This laststep completes. the tubular portion 34 and the tongue 35 and alsodisposes the male member I9 upon the tape end with the lowest element I2in the slot 33. The forming and shearing tools mentioned above'have notbeen'shown on the drawings as it is thought that they would be obviousto any workman skilled in this art from 30 a mere inspection of thedrawings.

7 Operation In 'operation, in order to connect the tapes l0 and, theslide I3, which is permanently retained on the tape ID, will first bepushed downwardly as, far as it will go until it strikes the socket 24of the female member I3. The tongue 35 of the male member I9 will'thenbe inserted through the plates I3 and I3of the slide and. into thesocket 24. The slide I3 will next be pulled upwardly while holding themale member I3 firmly, causing the. rows of elements I2 to be se- .When'connecting the members I3 and I3 of the slide stop, as above described,the male member l3 should be pressed downwardly with sufllcient force toinsure that the edge of the slot 33 of the side plates 33 and 3| engagesagainst the shoulder 39 of the slot 31 in the member I3, thuspositioning the lowest eleserves to protect the lower end of the tape Iagainst fraying. Likewise, the curved bottom secangle-shaped blankhaving an integral upper tion 53 connecting the side plates 26 and 21 ofth male member l9 also protects the end edge of the tape II. The clip 23which is clamped along the edge of the tape l0 stifiens and reinforcessaid tape at this point and prevents loosening of the lower adjacentelement l2. The side plates 30 and 3! of the male member reinforce andstifien'the tape ll adjacent the lowermost element l2, and the slot 36prevents the lowermost element [2 on the tape II from loosening orbecoming dislocated. The prongs 29 and 33 securely maintain the malemember I! in proper position on the tape II.

While there has, been disclosed in this specification one form in whichthe invention may be embodied and a preferred method of making the same,it is to be understood that this form and method are shown and describedfor the purpose of illustration only, and that the invention is not tobe limited to the specific disclosure,

but may be modified and embodied in various forms without departing fromits spirit. In short, the invention includes all the modifications andembodiments coming within the scope of the following vclaims.

Having fully described the invention, what is claimed as new, and forwhich it is desired to secure Letters Patent, is:

1. The method of making an angular male member of a two-part stop foruse on a beaded slide fastener tape, which comprises shearing anhorizontal arm and an integral lower vertical arm \from a flat strip ofmetal with tape penetrating prongs extending laterally and verticallyfrom the upper and lower arms of said angleshaped blank respectively,and with the horizontal upper arm provided with a reduceddepending'tongue-forming projection and a horizontal slot adjacent theupper 'end thereof to fit about and reinforce the lowermost element onsaid tape, bending the lower vertical arm along a horizontal median lineto form a pair of clamping plates to embrace the lower edge of saidtape, bending the upper part of said upper arm along a vertical line toform a pair of bead-embracing members, and forming said projection.

into a cylindrical tongue for engaging in a socket in a cooperatingfemale member of the twopart stop leaving a vertical slot between it andsaid clamping plates whereby said male member will be anchored verysecurely upon said tape.

2. The method of making an angular male member of a two-part stop foruse on a beaded slide fastener tape, which-comprises shearing anangle-shaped blank having an integral upper horizontal arm and anintegral lower vertical arm arm along a vertical line to form a pair ofbeadembracing members, and forming said depending projection into'acylindrical tongue for engaging in'a socket on a cooperating femalemember of the two-part stop leaving a vertical slot between said tongueand said clamping plates, whereby 'said'male member will be anchoredvery-rigidly to said beaded tape.

' MAX KIESSLING.

ADOLPH KRJEGER.

